Riveting press



March 22 1927.

M. O. KUHN RIVETING PRESS u. m m 6 1. A ,w A. m fiC S m if March 22,1921. 1,622,248

M. O. KUHN RIVETING PRESS Filed Avril 24, 1925 3 Sheets-Sheet 5 Patented Mar. 22, 1927. i

tea rs Nr i-JIAX'Q. irons-r, or'aifziroir, orilo, ass gn-oaro en's rhinestone seam rR'oDUcT's COMPANY; or A-Ka'oir, oiaro, A enemas-mica or onto.

Amines-non 'll'led April 24:, 1925. serial No. 25,4938.

This invention relates to riveting presses and particularly to presses for use in securing lugsor clamps onto deinountabl'e rims for vehicle wheels.

The object of the invention in general is to provide an improved press for eliicien't use in riin manufacture and in particular relatively movable platens, one of which is arranged "to support a lug formed with upstanding rivets and the other of which is adapted to first press an aperturedriin into proper relationonto saidlug with the rivets extending through the apertures and subsequeiitly to 'rivet over or upset the rivets to secure the lug on the rim.

The foregoing and ancillary objects are obtained by the construction illustrated in the "accompanying drawings and described in'detail-below. It is to be 'ui'iderstoo'd that the invention is not limited to the Specific construction illustrated and described.

Of the accompanying drawings:

Figure 1 is a front elevation, partly in section, of a apl'eSS "embodying the invention illustrated in use for securing a lug onto a rim;

Figure 2 is a transverse vertical section throughs'aid press;

Figure '3 is a section "on line 3-3 of Figure 1; and

Figure 1 is pla n of the lower platen.

Referring to the drawings, the press preterably consists of a lower platen 1'0 and an upper platen 11, the latter being reciprocable toward and from the former in any suitable m'an'ne'iz The platen 10 is formed with a socket 12 for removably receiving lug supporting blocks 13 and. 14: which are so formed as to provide between their upper surl'a'c'es an inclined tapered slot 15 adapted to snugly receive a lug 16 having the usual bolt hole 17 therein and formed with shoulders 18, 18 for seating against the under surface or rim indicated at 19 and with an inner face 20 for seating against a rib 21 formed on rim 19. Rivets 16 16 are formed on lugs 16 and are arranged to pass through apertures 19, 19 in rim 19. Blocks l3 and 1 1 are held in place by means of a clamping plate 22 secured on platen 10 by screws 23, 23 so as to overhang the front portion of socket 1 So that the socket 12 may be easily and cheaply formed, it is first bored intothe platen and then cut into the formation shown, the cylindrical. groeves 25, 25 being filled with blocks 24,24shaped to fit therein and drawn into place "therein by screws 26, 26 to providea rectangular socket. The ripper platen 11 carries an upsetting or riveting plunger 27 formed with'an angu larly directed upsetting surface 28. The plunger 2Tis received in a socket '28 in platen 11 and secured therein by a "set screw 29 engaged with "a notch 30 the plunger. Ill-OIdBT that the rim '19 "will be forced onto rivets 16 snugly against is'honlders 18 and lace 20 o f the lug prio r to tl-re riveting operation by plunger 27, yielding presser elements 31, 31 "are *ea-rried by {platen 11 and are adapted first to engage rim '19 on either side of apertures 19* or the po'ia'it where the lug 16'is to be secured. reference to Figure 1, it will be 'se'e'n tha't t/hese elements are directed radially or" the rim and are adapted to engage it closely 'adja cent the lug so as to minnnizeany flattening action on "the rim 19-.

Each presser elen'ie nt 31 is arranged to slide in a bore 32 in the platen 11, lubrication of the element 'bein g accomplished by a duct in the platen 1.1 which may have an ordinary grease cup 34 connected thereto. The upper end of each {element 31 extends into "a chamber 35 in platen 11 is formed "with an enlarged head 36 siidable in saidthambe Fitted in chamber so as to resist a or the element 31 ripwa roll'y withrespect t'o platen 11 is a resilient was? of rubber liormed it t h a central aperture 38 and with eras-m1 vertical Gages e9, e9 beveled so that'the rubber or the pad when compressed may ow lat in the chamber in" the spaces prev by the ape'rtrir'e 38*and beveled edges '39. For retaining the pads in chamber 35 and. to facilitate ready replacement thereof, a removable cover plate a0 is arranged over chamber 35 and seemed onto platen 11 by means of screws 11., 11. Presser elements 31 are normally held below the lower end of plunger 27 by the pads 37.

In operation, a lug 16 is mounted in the manner shown on plate 10. A rim, 19 is then positioned on the lug with the rivets 16 extending through apertures 19*. Platen 11 is now moved toward platen 10, elements 31 first engaging rim 19 and forcing it tightly against shoulders 18 and surface 20, the pads 37 permitting the elements to yield diiring' this action so that finally the plunger 27 will engage and rivet over the rivets 16 as shown in Figure 2. Platen 11 is then elevated, the rim 19 lifted upwardly carrying the lug 16 therewith out of socket 15. Another lug 16 is then placed therein, the rim 19 is manually rotated to the point where another lug 16 is to be secured and the rim again passed on rivets 16" on the second lug andthe operations are repeated as described until the requirednumber of lugs 16 are secured to each rim.

It will appear from the foregoing that by a single stroke of platen 11, the rim and lug are first snugly assembled in the desired relation and subsequently are permanently riveted together. Accordingly, the operations of assembling and securing lugs to rims are easily and rapidly accomplished by a single operation of the press.

Modifications may be resorted to without departing from the spirit thereof or the scope of the appended claims.

hat is claimed is:

1. Apparatus of the class described, comprising a platen, meanson the platen for receiving a lug having a rivet thereon so that the latter will project above the platen in such manner that an apertured rim may be mounted on the lug with the rivet extending through the aperture therein, a second platen movable relatively toward and from the first platen. elements on the second platen for engaging the rim and pressing it onto the lug, said elements being directed radially of the rim, yielding pads of resilient material backing said elements and mounted in said second platen so as to flow laterally under compression, and a plunger rigidly carried by the second platen adapted to engage and flatten said rivet, said elements and said plunger being adapted respectively to engage said rim and said rivet at points closely adjacent each other in the order named as the second plat-en moves toward the first platen.

2. Apparatus of the class described, com.- prising a platen, means on the platen for receiving a lug having a rivet thereon so that the latter will project above the platen in such manner that an apertured rim may be mounted on the lug with the rivet extending through the aperture therein, a second platen movable relatively toward and from the first platen, elements on" the second platen for engaging the rim and pressing it onto the lug, yielding pads of resilient material backing said elements and mounted in said second platen so as to flow laterally under compression, and a plunger rigidly carried by the second platen adapted to engage and flatten said rivet, said elements and said plunger being adapted respectively to engage saidrim and said rivet in the order named as the second platen moves toward the first platen. i i i 3. Apparatus of the class described, comprising a platen, means on the platen for receiving a lug having a rivet thereon so that the latter will project above the platen in such manner that an apertured rim may be mounted on the lug with the rivet extending through the aperture therein, a second platen movable relatively towardand from the first platen, yieldable elements radially mounted on the second platen for engaging the rim and pressing it onto the lug, and a plunger rigidly carried by the second platen adapted to engage and flatten said rivet, said elements and said plunger being adapted respectively to engage said rim and said rivet in the order named as the second platen moves toward the firstplaten.

l. Apparatus of the class described, comprising relatively movable platens, means on one of the platens for supporting a lug having an integral rivet portion with the rivet portion projectingv above the platen. yieldable presser element-s carried by the other platen for engaging an apertured rim on either side of an aperture therein to force the rim onto the lug with the rivet portion extendingthrough said aperture, and an upsetting plunger on said other platen for engaging and flattening said rivet portion, said presser elements being directed radially oi? the rim and adapted to engage the rim before the plunger flattens said rivet portion.

MAX 0; KUHN. 

